Glad to see you are posting. The help and ideas are great here. For me I had to stop saying I would "try to" and replace it with "stop for good, for the rest of my life no matter what" type conviction. This was me personally though but I know many others who didn't really want to quit that just did the work of the steps and would up staying permanently sober. Some of them became leaders of my local AA and have been sober for years.
Keep going man, being sober is great!!